Using an External Database for Cloudera Manager and CDH

By default, Cloudera Director configures Cloudera Manager and CDH services, such as Hive, to use the Cloudera Manager embedded
PostgreSQL database. You can use Cloudera Director to configure them to use external database servers, instead, which is recommended for production environments. If you have a database server already
configured, you can configure Cloudera Manager and CDH services to create or use databases on that server. You can also configure Cloudera Director to use a cloud provider service such as Amazon’s
Relational Database Service (RDS) to provision new database servers.